<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>

  <style>
    input {
      outline-style: none;
      border: none;
    }

    label input {
      /* vertical-align 属性设置元素的垂直对齐方式 */
      vertical-align: middle;
      margin-right: 8px;
      width: 18px;
      height: 18px;
      border: 1px solid #DDDDDD;
      border-radius: 50%;
    }

    label input:checked {
      border: 6px solid rgb(222, 1, 252);
      background: #FFFFFF;
    }

    span {
      /* vertical-align 属性设置元素的垂直对齐方式 */
      vertical-align: middle;
    }
  </style>
</head>

<body>
  <label><input type="radio" name="1" id="" value=""><span>选项一</span></label>
  <label><input type="radio" name="1" id="" value=""><span>选项二</span></label>
</body>

</html>